EIFFEL sheds light on "Rooftop Solar Photovoltaic Energy Potential at Urban Environments"

Our EIFFEL pilot Sustainable Urban Development had a strong presence with the study entitled “Rooftop Solar Photovoltaic Energy Potential at Urban Environments: Application Example for the City of Athens in Greece” that was held on 4th-8th of July 2022, in Thessaloniki, Greece.

More than 90 members from international universities, research institutions and companies had the opportunity to participate in the event focused on the EIFFEL’s Sustainable Urban Development pilot to the International Radiation and Solar Energy Community.

The presented study focuses on the solar photovoltaic (PV) energy potential estimation at a rooftop level for the city of Athens in Greece. To this direction, the three-dimensional ray tracing and shadow casting was simulated by using fast radiative transfer models, advanced graphic creation platforms and cloud computing in conjunction with data from the European Organization for the Exploitation of Meteorological Satellites and the Copernicus Atmospheric and Land Monitoring Services for the clouds, aerosols and building shadows effects, respectively. The technical development was implemented in a hybrid mode as to be exploited by urban planners for solar PV installations (historical mode) and by electricity distribution system operators for energy management and efficient incorporation of the produced energy into the regular and smart grids (real-time mode).

The total rooftop exploitable area was found to be close to 34 km2, which is able to massively host distributed PVs followed by almost 4.3 TWh of annually produced energy. This amount of energy, in a hypothetical full coverage scenario, is able to cover the 48.9% of the Athens’s total energy consumption. The result of this study is the development of a solar cadastre web tool (http://solea.gr/athens-solar-cadastre/), which will support the decision makers into the energy transition policies and the solar PVs penetration into the urban environment and the society.

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